Improvement in sash-holders



a To all fwhom-it-mey concern: i

Elu-ina @eine .l mn-1 entre;

PRENTIOEJW, GREENWOOD, OEA PETEEBOROUGH, NEW HAMPSHIRE y ,Letters Patent No. 107.773, dated September 27, 1870.

" IMPROVEMENT 1N. sAsH-HoLDER's.

Be itknown thatI, PRENTxoE W. GREENWOOD,

y, ofPeterborough, in the countyof"Hillsborough'and 1` State of New Hampshire, have invented anew and valuable Improvement in Window-Fasteners 'andi I do hereby declare thatthe following is a full, clear, and exact description of ltheconstrnction and operation of the same, reference being had to the annexed. C drawing making a part of this specification andto the. :let-ters and igures of reference marked thereon;

Figure lot' the drawing is a i'ont'viewof' my invention. l i y .l

Figure 2 is a vertical section of the same.

Figure 3 is an edgeview of the same. l l Myinvention has relation' tof fastening devices for I window-sasjhes, and` consists in connecting springs with i lthe rollers, arranged in oblique slots, for the purpose ot'holding such rollers to duty againstthe jamb ot`the window, soarranged thatthe sash will be prevented from ymoving upward, `as `well-,as downward, thereby making it perfectly steady, and serving, through -the lower roller, as a lock for securing t-he sash down. 'The letter-Anf the drawing designates the window-` AB represents awindousash, to which rny'invention G-is a recess formed in a block,]`), or in the wood l of the sash itself. If the hlockfis employed, itis aff `terward secured tothe sash.

`E represents a metal plate fastened over the recess, confining the rollers therein.

\ In the metal plate are cut the slots z z, converging The Schedulerrefen'ed to i'these Letters Patent and making part ot theV same.

ltoward each other,.and'having their nearest 'ends furthest from thewindow-jamb. i n

Iv 'L' are the rollers, usually having each but one journah'e, bearing in its slot z.' The perimeters of the rollers operate most satisfactorily when bound with rubber.

vWithin the recess is a small spring, s, arranged to draw or push the upper roller into the upper end' ot' the recess, and thus keeping it constantly in contact with the window-jamb. v

The lower roller is kept in contact by its own weight;

hence they are both automatic in their action.

The rollers are operated to release the sashby means' ofthe projecting jonrnals,which are furnished with little knobs' a a.

I am aware that it is not new to use a rubber roller in an inclined slot, for the purpose in view; hence, I do not claim such an invention; but

`What I claim as my invention, and desire to secure by LettersPatent, is`

lIn combination, the recess C, covering-plate ]1`l,havV

` ing the oblique convergent slots z z, the spring s,op

erating in connection with the upper roller, and the rollers c yL', when constructed'and arranged to'operate substantially as shown and described.,

In testimony that I claim the above, I havehereunto subscribedmy-name in the presence of two wit#v nesses.

PRENTIOE W. GREENWOOD, vlfitnesses: EznA M. SMITH,

ALBERT S. SCOTT. 

